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UK Main Number +44 (0)1244817107  |  sales@lcrhallcrest.com  

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Raw Material Change Notice: Thermax® Labels with a Glass Fiber Reinforced Adhesive Comparative Analysis and Performance Test

July 01, 2013

A new Tesa adhesive reinforced with glass fibers will be introduced over the next several months for all standard Thermax labels with Temperatures over 177°C. This transition will occur over the next 12 months and labels with the new adhesive will be identified with an "E" prefix to the lot number.

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Adhesive Specification Comparison

  New Tesa 4900 "E" Prefix Original Tesa 4959 "C" Prefix
Adhesive Acrylic reinforced with Glass Fibres Modified Acrylic on a tissue carrier
Carrier No Carrier Non-Woven Fabric (Tissue)
Adhesive + Carrier Thickness 50µ 100µ
Release Liner Thickness 71µ 71µ
Peel Adhesion Stainless Steel (20min @ RT) 370 N/m 620 N/m
Release Liner Glassline Glassline
Tack Very good Very good
Temperature Resistance Long Term 80°C Short term 200°C Long Term 80°C Short term 200°C

Adhesive Specification Comparison

Test New Tesa 4900 "E" Prefix Original Tesa 4959 "C" Prefix
Production Test Pass (Good) Pass (Very Good)
Cold Peel Test (No Heating) Pass (No Residue) Pass (No Residue)
Heat Test
(Heated 160°C held 5hrs Cooled 1hr removed at room temperature)
Pass Pass
Water Test
(Samples held in Cold & Boiling Water on various surfaces for 24hrs)
NA (Only for labels rated to 160°C) NA (Only for labels rated to 160°C)
Oil Bath Test (95°C) NA (Only for labels rated to 160°C) NA (Only for labels rated to 160°C)
Temperature Testing Pass (Consistent results) Pass (Consistent results)
Long Term Testing (6 months) Pass Pass
1911 Pickwick Lane - Glenview, IL 60026

847.998.8580
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LCR Hallcrest Ltd – UK

Riverside Buildings
Dock Road
Connah's Quay
Flintshire
CH5 4DS
+44 (0) 1244 817107
sales@lcrhallcrest.com

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